Multiple Choice
Stromatolites are layered structures produced by the activity of ________. 
A) dinosaurs
B) methanogens
C) cyanobacteria
D) green algae
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q18: The Western Interior Seaway reached its greatest
Q21: The late Proterozoic Grenville orogeny is an
Q22: The Miocene Epoch saw the spread of
Q29: A crustal rock dated to 150 Ma
Q30: Tree-sized relatives of the living ferns,club mosses,and
Q31: During the Cenozoic Era,most large-bodied terrestrial animals
Q32: The fossil fish Tiktaalik made headlines in
Q37: The oldest terrestrial insect fossils are found
Q37: The first terrestrial vertebrates (with an amphibian
Q38: Convergence along the western margin of North